The primary distinguishing characteristic of geographical information systems is: Question 36 options: 1) every record or digital object has a unique identifier 2) every record or digital object is visible to the user 3) every record or digital object must be accessed by programmers 4) every record or digital object has an identified geographical location 5) every record or digital object is encrypted

4) every record or digital object has an identified geographical location.

Explanation:

As per the characteristic that distinguishes the geographical information system the most important characters are related to the ability to combine the data from the different sources such as the vector and the raster data. And this information has been used in many areas of fo life. Consist of the spatial location of the features and features related to the point, line and the area and thus each and every data is digitally identified and geographically related and coordinated.

D, the answer is letter d. because even though fossil fuels take a very long time to form, they do form in the ground just like coal and others.